Throughout the 1990s and 2000s, Lehmann's practice built its reputation through consistent success in international design competitions. Wins at Potsdamer Platz, Hackescher Markt, and the Albertplatz masterplan in Dresden established him as a leading practitioner in sustainable, ecologically sensitive architecture and urban design. Across each project, his proposals emphasised adaptive reuse, green infrastructure, and the careful balance of historical preservation with contemporary urban needs.
His built work is widely recognised by institutions and clients as exemplifying excellence in sustainable design, including (Selection):
Mixed-use complex with Bund Deutscher Banken (BdB) headquarters at Hackescher Markt ($300m, 1994-2002)
Headquarters for Berliner Volksbank, now Pfizer Pharmaceutical HQ, at Potsdamer Platz, Berlin ($400m, 1993-2001)
Headquarters of German Workers Union (DGB) at Quartier an der Museumsinsel ($150m, 1995-2003)
Design Commissions and Built Works
French Embassy and Residence at Pariser Platz in Berlin, as Generalplaner, in partnership with Christian de Portzamparc ($150m, 1997-2002)
Extension Auswaertiges Amt (German Ministry of Foreign Affairs) at Oberwasserstrasse, Berlin ($50m, 1997-2003)
Masterplan Albertplatz, Dresden ($100m, 1994-1998)
Office building and factory in Hartha, Dresden (1994-1997)
Villa T. in Oberursel, Frankfurt a.M, as Generalplaner (1994-1996)
Three Urban Villas, Eichenallee, Berlin (1996-2000)
Waste Incineration Plant BEWAG, Berlin-Lichtenberg (1996-1998)
Adaptive Re-use, Bergstrasse 24, Berlin-Mitte, as Generalplaner (1996-1999)
Adaptive re-use and revitalization of the Railway Arches and Monbijou Park in Berlin Mitte, as Generalplaner (1996-1998)
Loft Renovation, Philippistrasse, Berlin-Charlottenburg (1994-1995)
Hotel 3-Star, Chausseestrasse 33, Berlin-Mitte (1999-2002)
Hotel Zoo Passage, Kantstrasse 10, Berlin Charlottenburg (2000-02)
Lighting series ‘Brasilia’, floor and wall lights for Selux GmbH, Berlin (1999)
Urban Regeneration Plan with Light Rail, Newcastle NSW, Australia (2006-2010)
Taree Waterfront and Park Masterplan, New South Wales, Australia (2007-2009)
Mildura Riverside and Park Masterplan, Victoria, Australia (2009-2010)
Solaris Sands, Noosa, Queensland, Australia (2017-2022)
Solaris Hilltop, Tamarindo, Costa Rica (2022-2024)
Solaris Bali, Melasti, Indonesia (2025-2027)
WHERE ACADEMIA MEETS INDUSTRY — CLOSING THE GAP BETWEEN URBAN RESEARCH AND BUILT PRACTICE.
